/**
* Copyright (C) 2010 Orbeon, Inc.
*
* This program is free software; you can redistribute it and/or modify it under the terms of the
* GNU Lesser General Public License as published by the Free Software Foundation; either version
* 2.1 of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU Lesser General Public License for more details.
*
* The full text of the license is available at http://www.gnu.org/copyleft/lesser.html
*/
package org.orbeon.oxf.xforms.function;
import org.orbeon.saxon.expr.XPathContext;
import org.orbeon.saxon.om.Item;
import org.orbeon.saxon.om.SequenceIterator;
import org.orbeon.saxon.trans.XPathException;
import org.orbeon.saxon.value.Int64Value;
public class CountNonEmpty extends XFormsFunction {
public Item evaluateItem(XPathContext c) throws XPathException {
int count = 0;
SequenceIterator iterator = argument[0].iterate(c);
for (Item item = iterator.next(); item != null; item = iterator.next()) {
if (item.getStringValue().length() > 0)
count++;
}
return new Int64Value(count);
}
}